Countertop calculator

Enter your counter's length and depth to find square footage needed and a rough material and fabrication cost estimate.

Counter length
ft
Counter depthi
ft
Material
Result
Area needed22.0sq ft
Est. cost$1,980

Rough estimate only — edge profiles, cutouts, and seams add to real-world quotes.

How this countertop estimate is built

We multiply counter length by depth for base area, add a flat 10% for waste and slab layout inefficiency, then multiply by a typical installed price per square foot for your chosen material (granite, quartz, or marble) that includes basic fabrication. That gives an estimated material and installation cost from just two measurements and a material choice.

The 10% waste figure matches typical fabricator layout and seam loss, since slabs come in fixed sizes and a rectangular counter rarely uses one perfectly. Bundling fabrication into the per-square-foot price mirrors how countertop quotes are usually structured, but sink and cooktop cutouts, upgraded edge profiles, waterfall edges, and backsplashes are priced separately — treat this as a starting number and get an itemized quote from a fabricator for the rest.

Frequently asked questions

Quartz typically runs a bit more than mid-range granite since it's an engineered product with consistent quality, though premium exotic granite slabs can cost more than standard quartz.

No — sink, cooktop, and outlet cutouts are typically priced separately by fabricators, along with edge profile upgrades and seam placement.